activity loop bug when adding an update

Hi, I would like to ask about one bug I revealed in activity loop. When using for example Recent Site Wide Posts widget and when you add new update (like in a group), new activity is added to group acitivity stream but in recent posts as well. This is because of an AJAX call, the activity disappears from widget after reloading the page. I’m developing a widget similar to sit Recent Site Wide and this is a bit problem.